When an atom of the element carbon (C) bonds with an atom of oxygen (O), ____.

the atoms are bound by a metallic bond

When an atom of the element zinc (Zn) is bonded to another Zn atom, ____.

the atoms are bound by a metallic bond

Which of these is a property of a substance which has ionic bonds?

solids have a crystalline structure

a triple bond between atoms is always formed

excellent conductors in the solid state

Which of these is a property of a substance which has metallic bonds?

nonconductors in solid state, electrical conductors in liquid or dissolved state

a double bond between atoms is always formed

are gases or vaporize readily at room temperature

The process of sublimation ____.

does not affect the kinetic energy of the molecules of the substance

does not result in an energy change

The process of freezing ____.

does not result in an energy change

does not affect the kinetic energy of the molecules of the substance

The graph below shows how the concentration of a radioactive element changes over time. Based on this information, which of these is a true statement?

The concentration of the radioactive element decreases at a steady rate over time.

Over time, there are more moles per liter of the radioactive element.

The concentration of the radioactive element increases at a steady rate over time.

The concentration of the radioactive element is at its lowest at 0.0 seconds.

To calculate the concentration, in molarity, of a salt solution, you need to know...

the mass of the salt added, the molar mass of the salt, and the total volume of the solution

the mass of the salt added to the solution and the volume of water added to the solution

the mass of the salt added, the molar mass of the salt, the volume of water added, and the total volume of the solution

the mass of the salt added to the solution and the total volume of the solution

The following question(s) refer to the equilibrium shown here: 4NH3(g) + 5O2(g) 4NO(g) + 6H2O(g) What would happen to the system if the total pressure were decreased?

The ammonia concentration would increase.

The water vapor would become liquid water.

The NO concentration will increase.

Choose the correct Lewis structure for the NH₄⁺ ion.

NH₄⁺ looks like: H | H-N⁺-H | H

NH₄⁺ looks like: H | H-N-H | H

NH₄⁺ looks like: H | H:N:H | H

NH₄⁺ looks like: [H:N:H] | H +

The position of a group or family on the periodic table reveals information about the characteristics of the elements making up that group. Which of the following statements is correct?

The position of a group or family on the periodic table reveals information about the characteristics of the elements making up that group.

Examine the periodic chart. The location of a group gives information about the properties of the elements within that group.

The position of a group or family on the periodic table reveals information about the characteristics of the elements making up that group.

Cadmium (Cd) and palladium (Pd) are metals. Xenon (Xe), fluorine (F), and neon (Ne) are classified as nonmetals. Which of the following statements is correct?

The location of this element on the periodic chart shows that it belongs to one of the other two general categories of elements.

Locate this element on the periodic table to determine whether it is a metal, metalloid, or nonmetal.

Study the placement of this element on the periodic table to determine if it is a metal, nonmetal, or metalloid.

Calcium (Ca), strontium (Sr) and sodium (Na) are all metals. Study the placement of this element on the periodic table to determine if it is a metal, nonmetal, or metalloid.

Study the placement of this element on the periodic table to determine if it is a metal, nonmetal, or metalloid.

Locate this element on the periodic table to determine whether it is a metal, metalloid, or nonmetal.

The location of this element on the periodic chart shows that it belongs to one of the other two general categories of elements.

Elements on the periodic chart are arranged according to a variety of patterns, one of which is the average size of the radius of an atom of the element. As a general rule, atomic radius decreases moving to the right across the periodic table, as the larger number of protons in the nucleus exerts a greater pull on the surrounding electrons, pulling them in more tightly. As a general rule, atomic radius increases moving down a family in the period table, as an additional energy level is added with each downward step.

As a general rule, atomic radii increase in size as you move down a group, and decrease in size as you move across a period.

Elements which are in the same group or family on the periodic chart have the same number of valence electrons.

The number of valence electrons can be determined by an element’s position on the periodic table.

Elements within the same group or family have the same number of valence electrons.

Elements within the same family or group have the same number of valence electrons.

Atoms of Group 1A and Group 2A elements have one or two valence electrons, respectively, and tend to lose these to achieve stability.

A group 1A or group 2A element will be most likely to react with an element which needs to gain one or two electrons to achieve a stable configuration.

A group 1A or group 2A element will be most likely to react with an element which needs to gain one or two electrons to achieve eight valence electrons.

An element from group 1A or group 2A will be most likely to react with an element which needs to gain one or two electrons to complete its outer energy shell. process

Atoms of Group 7A elements have seven valence electrons, and achieve stability by gaining one additional electron.

Atoms of group 2A elements can achieve a stable configuration by losing two electrons.

Atoms of group 1A elements readily lose their one valence electron.

Atoms of group 3A elements have only three valence electrons.

Atoms or elements within the same group or family have the same outer energy level configuration.

This element is part of group 4A.

Covalent bonds form when one or more pairs of electrons are shared between atoms. Covalent bonding generally occurs between elements that are relatively close together on the periodic table. Most covalent bonds form between nonmetallic elements.

Based on your knowledge of the formation of the three major types of atomic bonds, think about this question again.

Think about your answer again based on what you have learned about the differences between the three major bond types.

Based on your knowledge of the formation of the three major types of atomic bonds, which statement is correct?

The atoms in metals are held together through metallic bonds.

Based on your knowledge of the formation of the three major types of atomic bonds, think about this question again.

Think about your answer again based on what you have learned about the differences between the three major bond types.

Remember what you have learned about how the three major types of bonds differ, and consider this question again.

Chemistry: Semester 2 Final Exam (in progress)

Authored by Orlando Vega

Chemistry

10th Grade

NGSS covered

Used 3+ times

Chemistry: Semester 2 Final Exam (in progress)

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refer to the Periodic Table of Elements shown above. Which element group has physical and chemical properties of metals?

group 7A, the halogens

group 4A, the carbon group

group 1A, the alkali metals

group 6A, the oxygen group

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cadmium (Cd) is a metal, a shiny solid at room temperature and conductor of heat and electricity. Which of the elements listed below shares these properties?

palladium (Pd)

xenon (Xe)

fluorine (F)

neon (Ne)

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Silicon (Si) is a metalloid, with physical and chemical properties of both metals and nonmetals. Which of the elements listed below is also a metalloid?

zinc (Zn)

aluminum (Al)

boron (B)

zirconium (Zr)

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phosphorus (P) is a nonmetal, which is a poor conductor of heat and electricity. Which of the elements listed below shares these properties?

strontium (Sr)

sodium (Na)

iodine (I)

calcium (Ca)

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refer to the Periodic Table of Elements shown above. The size of the atoms of elements changes in a predictable way from left to right across periods, as well as up and down through groups. The image below shows these general trends. Based on this information, which of these elements has atoms with the largest atomic radii?

gallium (Ga)

germanium (Ge)

arsenic (As)

selenium (Se)

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these elements has the same number of valence electrons as neon (Ne)?

chlorine (Cl)

xenon (Xe)

iodine (I)

zinc (Zn)

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refer to the Periodic Table of Elements shown above. The element rubidium (Rb) is most likely to react with the element ...

iodine (I)

cadmium (Cd)

chromium (Cr)

silver (Ag)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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Chemistry: Semester 2 Final Exam (in progress)

Refer to the Periodic Table of Elements shown above. Which element group has physical and chemical properties of metals?

Cadmium (Cd) is a metal, a shiny solid at room temperature and conductor of heat and electricity. Which of the elements listed below shares these properties?

Silicon (Si) is a metalloid, with physical and chemical properties of both metals and nonmetals. Which of the elements listed below is also a metalloid?

Phosphorus (P) is a nonmetal, which is a poor conductor of heat and electricity. Which of the elements listed below shares these properties?

Which of these elements has the same number of valence electrons as neon (Ne)?

Refer to the Periodic Table of Elements shown above. The element rubidium (Rb) is most likely to react with the element ...

Atoms of which of the following elements will become most stable by gaining one electron?

Refer to the Periodic Table of Elements shown above. Which of these elements has atoms with the same outer energy level configuration as atoms of the element aluminum (Al)?

When an atom of the element carbon (C) bonds with an atom of oxygen (O), ____.

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